Evidence map›Paper›PMID 25551066›Full record

ArticleBeilstein journal of nanotechnology2014

Synthesis of radioactively labelled CdSe/CdS/ZnS quantum dots for in vivo experiments.

Gordon M Stachowski, Christoph Bauer, Christian Waurisch, Denise Bargheer, Peter Nielsen, Jörg Heeren, Stephen G Hickey, Alexander Eychmüller

Abstract read
In one paragraph

Article in Beilstein journal of nanotechnology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

0numbers the graph read from it
0cells of the map it votes in
0citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

0 citing papers in PubMed.

No citing paper in PubMed yet.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Gordon M StachowskiPhysical Chemistry, Technische Universität Dresden, 01062 Dresden, Germany.
Christoph BauerPhysical Chemistry, Technische Universität Dresden, 01062 Dresden, Germany.
Christian WaurischPhysical Chemistry, Technische Universität Dresden, 01062 Dresden, Germany ; Li-Tec Battery GmbH, Am Wiesengrund 7, 01917 Kamenz, Germany.
Denise BargheerDepartment of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany.
Peter NielsenDepartment of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany.
Jörg HeerenDepartment of Biochemistry and Molecular Cell Biology, University Medical Centre Hamburg-Eppendorf, 20246 Hamburg, Germany.
Stephen G HickeyPhysical Chemistry, Technische Universität Dresden, 01062 Dresden, Germany ; School of Chemistry and Forensic Science, University of Bradford, Richmond Road, Bradford BD7 1DP, United Kingdom.
Alexander EychmüllerPhysical Chemistry, Technische Universität Dresden, 01062 Dresden, Germany.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

During the last decades of nanoparticles research, many nanomaterials have been developed for applications in the field of bio-labelling. For the visualization of transport processes in the body, organs and cells, luminescent quantum dots (QDs) make for highly useful diagnostic tools. However, intercellular routes, bio-distribution, metabolism during degradation or quantification of the excretion of nanoparticles, and the study of the biological response to the QDs themselves are areas which to date have not been fully investigated. In order to aid in addressing those issues, CdSe/CdS/ZnS QDs were radioactively labelled, which allows quantification of the QD concentration in the whole body or in ex vivo samples by γ-counting. However, the synthesis of radioactively labelled QDs is not trivial since the coating process must be completely adapted, and material availability, security and avoidance of radioactive waste must be considered. In this contribution, the coating of CdSe/CdS QDs with a radioactive (65)ZnS shell using a modified, operator-safe, SILAR procedure is presented. Under UV illumination, no difference in the photoluminescence of the radioactive and non-radioactive CdSe/CdS/ZnS colloidal solutions was observed. Furthermore, a down-scaled synthesis for the production of very small batches of 5 nmol QDs without loss in the fluorescence quality was developed. Subsequently, the radio-labelled QDs were phase transferred by encapsulation into an amphiphilic polymer. γ-counting of the radioactivity provided confirmation of the successful labelling and phase transfer of the QDs.

Indexed as

65ZnbiomarkerCdSe/CdS/ZnSquantum dotsradioactive labelling

Identifiers

PMID25551066
PMCPMC4273238

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.